Ответ 10*(8х-3) - 7*(3х+1)
-------------- ------------ = 2
10* 8 8*10
80х-30 - 21х+1=2
59х=31
х=0.53
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Ответ 10*(8х-3) - 7*(3х+1)
-------------- ------------ = 2
10* 8 8*10
80х-30 - 21х+1=2
59х=31
х=0.53